Mr. Joseph Weissman Profile

Joseph Weissman

at MITRE Corp

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Proceedings Article | 7 June 2024 Presentation + Paper

Exploiting explainability for reinforcement learning model assurance

Alexander Tapley, Joseph Weissman

Proceedings Volume 13054, 130540G (2024) https://doi.org/10.1117/12.3013090

KEYWORDS: Deep learning, Information assurance, Visualization, Failure analysis, Visual analytics, Machine learning, Visual process modeling, Performance modeling, Data modeling

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Explainable Reinforcement Learning (XRL) techniques help to provide insight into the decision-making process of a Deep Reinforcement Learning (DRL) model and can be used to identify vulnerabilities and weaknesses within the policy prior to deployment, but these techniques also expose critical policy information and associated vulnerabilities that adversaries can exploit to develop more effective and efficient adversarial attacks against the trained policy. This paper introduces the ARLIN (Assured Reinforcement Learning Model Interrogation) Toolkit, an open-source Python library that identifies potential vulnerabilities and critical points within trained DRL models through detailed, human-interpretable explainability outputs. To illustrate ARLIN’s effectiveness, we provide explainability visualizations and vulnerability analysis for a publicly available DRL model and demonstrate how the outputs generated by ARLIN can be exploited to successfully reduce the overall performance of the model while limiting overall detectability. The open-source code repository is available for download at https://github.com/mitre/arlin.

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